Combined pet litter box and insert



FIG. 1 is a perspective view of the combined pet litter box and insert showing my new design;

FIG. 2 is an exploded perspective view of the pet litter box showing my new design;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of the insert;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a left elevational view thereof;

FIG. 13 is a right elevational view thereof;

FIG. 14 is a top plan view thereof; and,

FIG. 15 is a bottom plan view thereof. 

The ornamental design for combined pet litter box and insert, as shown and described herein. 